All setup with notifications on my iPhone IOS 10.3.3(current), I get a notification popup banner, but nothing shows up in the Mobilinc Pro notifications Center screen, just blank, touch Show less or Show more, nothing

Are you looking at the Today View widget? That's the only place where "Show less/more" appears that I can think of. This isn't for notifications. You can tag devices, scenes, and programs in MobiLinc under each Advanced Options for the specific device/scene/program to appear here for quick status/control from the Today View.